.aside {
    position: relative;

    .node-list {
        max-height: 70vh;
        .node-item {
            margin: 10px 8px;
        }
    }

    .close-panel-btn {
        cursor: pointer;
        position: absolute;
        bottom: -10px;
        left: 50%;
        transform: translateX(-50%);
        font-size: larger;
        color: #ccc;

        &:hover {
            color: #14ae5c;
        }
    }
}